We've lived here since 2006. 2 . Since the party she had only spoken to him once. 这两个since是介词 3. Cathy hasn't phoned since she went to Berlin. 4. She had been worrying ever since the letter arrived. …

6、与since连用的时态 一般情况下，since和现在完成式 (或过去完成式)连用。 但是这只是说句子中的主要动词是完成式。 如果since引导一个从句，则从句中的动词根据具体情况可以是过去式或现在完成 …

Mar 17, 2024 · 关于since 的用法? 下面ai的解释对不对? "It's been three years since I lived here." 这句话可以有两种解释，具体含义取决于上… 显示全部 关注者 6 被浏览

for和since虽然也是连词，其中for是并列连词，since是从属连词，但它们都不能用于 表语从句，它就是没这个用法。语法里有些事追根究底有原因有逻辑，有些事则没有，不必要追根究底，你只要记住会用 …

Jul 1, 2023 · "Long since" implies that a considerable amount of time has passed since the wind forgot, emphasizing the duration of the forgetfulness. It suggests that the wind's forgetfulness is not recent …

Since的时态 Since通常与完成时态结合使用，表示从过去某一时间点开始，一直延续到另一个时间点: 1. 现在完成时（have/has + 过去分词）: - 用于表达从过去某个时间点开始，持续到现在的动作或状态 …

Nov 29, 2011 · Since 2010，这种情况指的是，2010年是一个过去的时间，现在可能是2016或2020年，我们之前就开始了，并且现在持续在做，举例： Since 2015, we have been making all students …

二、现在完成进行时 构成： have / has been + v-ing 概念： 计时起点过去，终点现在 又具备进行体的特征： ①进行中 ②未完成 ③感情色彩 *暂时性 He has been learning English for 6 years. (到现在还 …

Jun 27, 2019 · since做介词和连词的时候 通常表示自…以来,自从…之后。 比如 since then 从那以后 还有问题中的 since the date of the foundation of the People's Republic of China 2. 做副词的时候 可以表 …

The house was built in 1919, since when it has changed owners several times. The house was built in 1919, since which time it has changed owners several times. 2. 关系代词which可以指代事物却不能 …